"Velocity of sound in some solids and liquids, Water 1450 m/s, 3240 miles/hour"

1450 m/s

Sound is a type of longitudinal, mechanical wave. They need a medium to propagate
and will not travel through a vacuum. Sound travels at different speed
in different media. The speed of sound is determined by the density (ρ) and compressibility (K) of the medium. Density is the amount of material
in a given volume, and compressibility is a measure of how much a substance
could be compacted for a given pressure. The denser and the more compressible,
the slower the sound waves would travel. Water is much more dense than
air, but since it is nearly incompressible the speed of sound is about
four times faster in water than in air. The speed of sound in a medium
can be determined by the equation …

v = (Kρ)-½

Where …

v is the speed of sound,K is the compressibility, andρ (rho) is the density.

The speed of sound can also be affected by temperature. Sound waves tend
to travel faster at higher temperatures. I have found different values
for the speed of sound in water in different sources. They range from 1450
to 1498 meters per second in distilled water and 1531 m/s in sea water at room temperatures (20 to 25 °C).